<template>
    <div class="header">
        <div class="nav-topbar">
            <div class="container">
                <div class="topbar-menu">
                    <a href="javascript:;">小米商城</a>
                    <a href="javascript:;">MUI</a>
                    <a href="javascript:;">云服务</a>
                    <a href="javascript:;">协议规则</a>
                </div>
                 <div class="topbar-user">
                     <a href="javascript:;" v-show="username">{{username}}</a>
                     <a href="javascript:;" v-show="!username" @click="login">登陆</a>
                     <a href="javascript:;" v-show="username" @click="logout">退出</a>
                     <!-- <a href="/#/order/list" v-show="username" >我的订单</a> -->
                     <router-link to="/order/list" v-show="username">我的订单</router-link>
                     <a href="javascript:;" class="my-cart"><span class="icon-cart" @click="goToCart"></span>购物车({{cartCount}})</a>
                 </div>
            </div>
        </div>
        <div class="nav-header">
            <div class="container">
                <div class="header-logo">
                    <a href="/#/index"></a>
                </div>
                <ul class="header-menu">
                        <li>
                            小米手机
                            <ul class="children">
                                <li class="product" v-for="(item,i) of phoneList" :key="i">
                                  <a :href="'/#/product/'+item.id" target="_blank">
                                      <div class="pro-img"> 
                                          <img v-lazy="item.mainImage" alt="">
                                      </div>
                                     <span class="pro-name">{{item.name}}</span>
                                     <span class="pro-price">{{item.price | currency}}</span>
                                  </a>
                                </li>
                            </ul>
                        </li>
                        <li>Redmi红米
                        </li>
                        <li>电视
                            <ul class="children">
                                <li class="product">
                                  <a href="" target="_blank">
                                      <div class="pro-img"> 
                                          <img v-lazy="'/imgs/nav-img/nav-3-1.jpg'" alt="">
                                      </div>
                                     <span class="pro-name">小米壁画电视 65英寸</span>
                                     <span class="pro-price">6999元</span>
                                  </a>
                                </li>
                                 <li class="product">
                                  <a href="" target="_blank">
                                      <div class="pro-img"> 
                                          <img v-lazy="'/imgs/nav-img/nav-3-2.jpg'" alt="">
                                      </div>
                                     <span class="pro-name">小米全面屏电视E55A</span>
                                     <span class="pro-price">1999元</span>
                                  </a>
                                </li>
                                <li class="product">
                                  <a href="" target="_blank">
                                      <div class="pro-img"> 
                                          <img v-lazy="'/imgs/nav-img/nav-3-3.png'" alt="">
                                      </div>
                                     <span class="pro-name">小米电视4A 32英寸</span>
                                     <span class="pro-price">699元</span>
                                  </a>
                                </li>
                                <li class="product">
                                  <a href="" target="_blank">
                                      <div class="pro-img"> 
                                          <img v-lazy="'/imgs/nav-img/nav-3-4.jpg'" alt="">
                                      </div>
                                     <span class="pro-name">小米电视4A 55英寸</span>
                                     <span class="pro-price">1799元</span>
                                  </a>
                                </li>
                                <li class="product">
                                  <a href="" target="_blank">
                                      <div class="pro-img"> 
                                          <img v-lazy="'/imgs/nav-img/nav-3-5.jpg'" alt="">
                                      </div>
                                     <span class="pro-name">小米电视4A 65英寸</span>
                                     <span class="pro-price">2699元</span>
                                  </a>
                                </li>
                                <li class="product">
                                  <a href="" target="_blank">
                                      <div class="pro-img"> 
                                          <img v-lazy="'/imgs/nav-img/nav-3-6.png'" alt="">
                                      </div>
                                     <span class="pro-name">查看全部</span>
                                     <span class="pro-price">小米电视</span>
                                  </a>
                                </li>
                            </ul>
                        </li>
                 </ul>
                <div class="header-search">
                    <div class="wrapper">
                        <input type="text" name="keyword">
                        <a href="javascript:;"></a>
                    </div>
                </div>
            </div>
        </div>
   </div>
</template>
<script>
import {mapState} from 'vuex'
export default {
  name: "nav-header",
  
  data() {
    return {
      // username: this.$store.state.username,
      phoneList: []
    };
  },
  computed:{
    // username(){
    //   return  this.$store.state.username;
    // },
    //  cartCount(){
    //   return  this.$store.state.cartCount;
    // },
    ...mapState(['username','cartCount'])
   
  },
  mounted() {
    this.getProductList();
    let params = this.$route.params;
    if(params && params.from == 'login'){
          this. getCartCount();
    }
   
  },
  filters: {
    currency(val) {
      if (!val) return "0.00";
      return "￥" + val.toFixed(2) + "元";
    }
  },
  methods: {
    login() {
      this.$router.push("/login");
    },
    getProductList() {
      this.axios
        .get("/products", {
          params: {
            categoryId: "100012",
            pageSize: 6
          }
        })
        .then(res => {
          this.phoneList = res.list;
        });
    },
      getCartCount(){
         this.axios.get('/carts/products/sum').then((res=0)=>{
          // to-do  保存到vuex里面
          console.log(res)
           this.$store.dispatch('saveCartCount',res)
        })
     },
    logout(){
         this.axios
        .post("/user/logout")
        .then(() => {
          this.$message.success('退出成功')
          this.$cookie.set('userId','',{expires:'-1'});
          this.$store.dispatch('saveUserName','');
           this.$store.dispatch('saveCartCount',0);
        });
    },
    goToCart() {
      this.$router.push("/cart");
    }
  }
};
</script>
<style lang="scss">
@import "../assets/scss/base.scss";
@import "../assets/scss/mixin.scss";
@import "../assets/scss/config.scss";
.header {
  .nav-topbar {
    height: 39px;
    line-height: 39px;
    background-color: #333;
    color: #b0b0b0;
    .container {
      @include flex();

      a {
        display: inline-block;
        color: #b0b0b0;
        margin-right: 17px;
      }
      .my-cart {
        width: 110px;
        background-color: #ff6600;
        text-align: center;
        color: #fff;
        margin-right: 0;
        .icon-cart {
          @include bgImg(16px, 12px, "/imgs/icon-cart-checked.png");
          margin-right: 4px;
        }
      }
    }
  }
  .nav-header {
    .container {
      height: 112px;
      position: relative;
      @include flex();
     
      .header-menu {
        display: inline-block;
        width: 643px;
        padding-left: 209px;

        > li {
          display: inline-block;
          color: #333;
          font-weight: bold;
          font-size: 16px;
          line-height: 112px;
          text-align: center;
          cursor: pointer;
          margin-right: 20px;
          &:hover {
            color: $colorA;
            .children {
              height: 220px;
              opacity: 1;
            }
          }
          .children {
            position: absolute;
            top: 112px;
            left: 0;
            width: 1226px;
            height: 0;
            overflow: hidden;
            opacity: 0;
            border: 1px solid #e5e5e5;
            box-shadow: 0px 7px 6px 0px rgba(0, 0, 0, 0.11);
            z-index: 10;
            transition: all 0.3s;
            background-color: #fff;
            .product {
              float: left;
              width: 16.6%;
              height: 220px;
              font-size: 12px;
              line-height: 12px;
              position: relative;
              &::before {
                content: "";
                position: absolute;
                right: 0;
                top: 28px;
                border-left: 1px solid #d7d7d7;
                height: 100px;
                width: 1px;
              }
              &:last-child::before {
                display: none;
              }
              a {
                display: inline-block;
                .pro-img {
                  height: 137px;
                  img {
                    height: 111px;
                    width: auto;
                    margin-top: 26px;
                  }
                }
                .pro-name {
                  display: block;
                  margin-top: 19px;
                  margin-bottom: 8px;
                  font-weight: bold;
                  color: $colorB;
                }
                .pro-price {
                  color: $colorA;
                }
              }
            }
          }
        }
      }
      .header-search {
        width: 319px;
      }
      .wrapper {
        height: 50px;
        border: 1px solid #e0e0e0;
        display: flex;
        align-items: center;

        input {
          border: none;
          border-right: 1px solid #e0e0e0;
          width: 264px;
          height: 50px;
          padding-left: 14px;
          box-sizing: border-box;
        }
        a {
          @include bgImg(18px, 18px, "/imgs/icon-search.png");
          margin-left: 17px;
        }
      }
    }
  }
}
</style>
